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Arada [10]
2 years ago
7

Silicones are ________. Select one: A. flat sheets of silicon and hydrogen atoms B. flat sheets of silicon atoms C. chains of al

ternating silicon and oxygen atoms with attached organic groups D. three-dimensional covalent networks of silicon atoms E. three-dimensional covalent networks of SiO4 tetrahedra
Chemistry
2 answers:
S_A_V [24]2 years ago
7 0

Answer:

Option C. chains of alternating silicon and oxygen atoms with attached organic groups

Explanation:

Silicones are polymers which comprises of repeating units of siloxanes i.e a chain of alternating silicon and oxygen atoms combined with an organic group which includes: carbon and hydrogen with other elements.

Anna007 [38]2 years ago
3 0

Answer:

C. chains of alternating silicon and oxygen atoms with attached organic groups

Explanation:

It contains Silicone-Oxygen backbone as found in Silicone Dioxide (silica) but it also has organic groups attached to this backbone with Carbon-Silicone attachments. This whole arrangement of Silicone, Oxygen and Attached organic groups make up Silicones.

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3 years ago
PLEASE HELP this is physical science.
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<h3>Further explanation</h3>

Given

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No = 40 g

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Required

time of decay

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General formulas used in decay:  

\large{\boxed{\bold{N_t=N_0(\dfrac{1}{2})^{t/t\frac{1}{2} }}}

t = duration of decay  

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\tt 2.5=40.\dfrac{1}{2}^{t/5730}\\\\\dfrac{2.5}{40}=\dfrac{1}{2}^{t/5730}\\\\(\dfrac{1}{2})^4=\dfrac{1}{2}^{t/5730}\\\\4=t/5730\rightarrow t=22920~years

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mezya [45]

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V2~0.4839M

Explanation:

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